/* ==========================================================================
   吳鳳科技大學校務研究辦公室 - 生源及招生分析儀表板
   Modern Responsive Design (RWD) & Institutional Research Theme
   ========================================================================== */

:root {
  --primary-color: #0f4c81;       /* 吳鳳科大經典藍 */
  --primary-hover: #0b3760;
  --secondary-color: #d4af37;     /* 尊榮金色 */
  --accent-color: #17a2b8;        /* 亮綠藍 */
  --bg-color: #f4f7f9;
  --card-bg: #ffffff;
  --text-primary: #2b303a;
  --text-muted: #6c757d;
  --border-color: #e2e8f0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition-fast: 0.25s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Header Navbar */
.navbar {
  background: linear-gradient(135deg, #0b3760 0%, #0f4c81 50%, #1e5f9a 100%);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-logo-badge {
  width: 44px;
  height: 44px;
  background-color: #ffffff;
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin: 0;
}

.brand-text p {
  font-size: 0.8rem;
  opacity: 0.88;
  margin: 0;
}

.navbar-info {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.85rem;
}

.info-badge {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero Section */
.hero-header {
  position: relative;
  background-image: linear-gradient(to right, rgba(11, 55, 96, 0.85), rgba(15, 76, 129, 0.75)), url('../assets/images/wfu_hero_banner.jpg');
  background-size: cover;
  background-position: center;
  color: white;
  padding: 2.5rem 1.5rem;
  border-bottom: 4px solid var(--secondary-color);
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
}

.hero-title {
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1rem;
  opacity: 0.92;
  max-width: 900px;
}

/* Main Layout & Controls */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Control Bar (Filters) */
.filter-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.select-control {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #fff;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
}

.select-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.15);
}

/* Tab Navigation - Optimized for Full Single-Page View (RWD) */
.tabs-navigation-wrapper {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.tabs-navigation {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
  border-bottom: none;
  margin-bottom: 0;
  overflow-x: visible;
  padding-bottom: 0;
}

.tab-btn {
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: normal;
  text-align: left;
  line-height: 1.35;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.tab-btn i {
  font-size: 1.05rem;
  flex-shrink: 0;
}

.tab-btn:hover {
  color: var(--primary-color);
  background-color: #edf2f7;
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.tab-btn.active {
  color: #ffffff !important;
  background: linear-gradient(135deg, var(--primary-color) 0%, #1a65a3 100%) !important;
  border-color: var(--primary-color) !important;
  box-shadow: 0 4px 10px rgba(15, 76, 129, 0.25);
}

.tab-btn.active i,
.tab-btn.active span {
  color: #ffffff !important;
}

/* Category Accent Border when not active */
.tab-btn[data-tab="tab-regrate"]:not(.active) {
  border-left: 4px solid #0277bd;
}
.tab-btn[data-tab="tab-intl"]:not(.active) {
  border-left: 4px solid #0f4c81;
}
.tab-btn[data-tab="tab-vtrend"]:not(.active) {
  border-left: 4px solid #e65100;
}
.tab-btn[data-tab="tab-feeder"]:not(.active) {
  border-left: 4px solid #2e7d32;
}
.tab-btn[data-tab="tab-colleges"]:not(.active) {
  border-left: 4px solid #6a1b9a;
}
.tab-btn[data-tab="tab-dropout"]:not(.active) {
  border-left: 4px solid #c62828;
}
.tab-btn[data-tab="tab-strategy"]:not(.active) {
  border-left: 4px solid #f57f17;
}
.tab-btn[data-tab="tab-units"]:not(.active) {
  border-left: 4px solid #00838f;
}
.tab-btn[data-tab="tab-overview"]:not(.active) {
  border-left: 4px solid #37474f;
}

/* Tab Content Panels */
.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--primary-color);
}

.kpi-card.gold::before { background-color: var(--secondary-color); }
.kpi-card.teal::before { background-color: var(--accent-color); }
.kpi-card.purple::before { background-color: #6f42c1; }

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.kpi-icon {
  font-size: 1.25rem;
  color: var(--primary-color);
}

.kpi-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.kpi-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Chart Grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.grid-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.chart-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 320px;
  min-height: 280px;
}

.chart-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Tables */
.table-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.table-responsive {
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.custom-table th {
  background-color: #f8fafc;
  color: var(--primary-color);
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.custom-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.custom-table tbody tr:hover {
  background-color: #f1f5f9;
}

/* Badges & Tags */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
}

.tag-primary { background-color: #e2e8f0; color: var(--primary-color); }
.tag-success { background-color: #d1e7dd; color: #0f5132; }
.tag-warning { background-color: #fff3cd; color: #664d03; }

/* SWOT Analysis Cards */
.swot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.swot-box {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.swot-box.s { background-color: #e8f4ea; border-left: 5px solid #28a745; }
.swot-box.w { background-color: #fdf2e9; border-left: 5px solid #fd7e14; }
.swot-box.o { background-color: #e6f0fa; border-left: 5px solid #007bff; }
.swot-box.t { background-color: #f8d7da; border-left: 5px solid #dc3545; }

.swot-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.swot-list {
  padding-left: 1.25rem;
  font-size: 0.9rem;
}

.swot-list li {
  margin-bottom: 0.5rem;
}

/* Strategy Banner */
.strategy-banner {
  background: linear-gradient(135deg, #0f4c81 0%, #1e5f9a 100%);
  color: white;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
}

.strategy-banner h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Footer */
.footer {
  background-color: #0b3760;
  color: #d0dbe5;
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 3rem;
  border-top: 3px solid var(--secondary-color);
}

.footer a {
  color: var(--secondary-color);
  text-decoration: none;
}

/* Responsive Rules (RWD) */
@media (max-width: 992px) {
  .grid-2, .grid-1-2, .grid-2-1, .swot-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .filter-card {
    flex-direction: column;
    align-items: stretch;
  }

  .tabs-navigation {
    justify-content: flex-start;
  }
  
  .chart-container {
    height: 260px;
  }
}

/* Enrollment Channels Year Buttons */
.btn-channel-yr {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.btn-channel-yr:hover {
  background: #e2e8f0;
  color: #1e293b;
}
.btn-channel-yr.active {
  background: #7b1fa2;
  color: #ffffff;
  border-color: #6a1b9a;
  box-shadow: 0 2px 6px rgba(123, 31, 162, 0.35);
}


/* ==========================================================================
   入學管道 × 科系招生分析表 專屬樣式
   ========================================================================== */

/* 學年度切換按鈕 */
.ch-dept-year-btn {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.ch-dept-year-btn:hover {
  background: #e2e8f0;
  color: #1e293b;
}
.ch-dept-year-btn.active {
  background: #0f4c81;
  color: #ffffff;
  border-color: #0b3760;
  box-shadow: 0 2px 6px rgba(15,76,129,0.35);
}

/* 顯示模式切換按鈕 */
.ch-dept-view-btn {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.ch-dept-view-btn:hover {
  background: #e2e8f0;
}
.ch-dept-view-btn.active {
  background: #17a2b8;
  color: #fff;
  border-color: #138496;
  box-shadow: 0 2px 6px rgba(23,162,184,0.3);
}

/* 熱力矩陣表格 */
#channelDeptTable th {
  font-size: 0.78rem;
  text-align: center;
  padding: 8px 6px;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
  background: #1a237e;
  color: #fff;
}
#channelDeptTable th.col-dept {
  text-align: left;
  min-width: 160px;
  position: sticky;
  left: 0;
  z-index: 3;
  background: #0f4c81;
}
#channelDeptTable th.col-total {
  background: #d4af37;
  color: #333;
}
#channelDeptTable tbody tr:hover td {
  filter: brightness(0.92);
}
#channelDeptTable td {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 6px;
  border: 1px solid rgba(255,255,255,0.15);
  transition: filter 0.15s;
}
#channelDeptTable td.td-dept-name {
  text-align: left;
  font-weight: 700;
  font-size: 0.82rem;
  background: #f1f5f9 !important;
  color: #1e293b;
  position: sticky;
  left: 0;
  z-index: 1;
  white-space: nowrap;
  border-right: 2px solid #cbd5e1;
}
#channelDeptTable td.td-total {
  font-weight: 800;
  background: #fff8e1 !important;
  color: #6d4c00;
  border-left: 2px solid #ffd54f;
}
#channelDeptTable tr.tr-college-header td {
  background: #e3eaf4 !important;
  color: #0f4c81;
  font-weight: 700;
  font-size: 0.8rem;
  text-align: left;
  padding-left: 10px;
}
#channelDeptTable tfoot tr td {
  font-weight: 800;
  background: #1a237e !important;
  color: #fff;
  font-size: 0.82rem;
}
#channelDeptTable tfoot tr td.tf-total {
  background: #b8860b !important;
  color: #fff;
}

/* 科系特色分析卡片 */
.dept-rank-card {
  background: rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 12px;
  border-left: 3px solid rgba(212,175,55,0.8);
}
.dept-rank-card .dept-rank-name {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.dept-rank-card .dept-rank-channel {
  font-size: 0.76rem;
  opacity: 0.85;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 3px;
}
.dept-rank-card .dept-rank-badge {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  padding: 1px 8px;
  font-size: 0.72rem;
  margin-top: 4px;
}

/* 摘要統計列 */
.ch-dept-summary-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #fff;
  border-radius: 8px;
  padding: 8px 14px;
  min-width: 100px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  border-top: 3px solid #0f4c81;
}
.ch-dept-summary-item .s-label {
  font-size: 0.72rem;
  color: #666;
  white-space: nowrap;
}
.ch-dept-summary-item .s-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: #0f4c81;
}


/* ==========================================================================
   系統版本管控 (Version Control) 樣式
   ========================================================================== */

.version-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(212,175,55,0.2) 0%, rgba(212,175,55,0.35) 100%);
  color: #fff;
  border: 1px solid rgba(212,175,55,0.7);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.version-badge-btn:hover {
  background: linear-gradient(135deg, #d4af37 0%, #f1c40f 100%);
  color: #1a237e;
  border-color: #ffd700;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212,175,55,0.4);
}

/* 版本更新日誌彈窗 Modal */
.version-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 16px;
}

.version-modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.version-modal-card {
  background: #ffffff;
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.25s ease;
}

.version-modal-backdrop.active .version-modal-card {
  transform: translateY(0) scale(1);
}

.version-modal-header {
  background: linear-gradient(135deg, #0b3760 0%, #0f4c81 60%, #1e5f9a 100%);
  color: #ffffff;
  padding: 16px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.version-modal-header h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.version-modal-close {
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.version-modal-close:hover {
  background: rgba(255,255,255,0.3);
  transform: rotate(90deg);
}

.version-modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.version-meta-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.version-meta-item .label {
  font-size: 0.72rem;
  color: #64748b;
  margin-bottom: 2px;
}

.version-meta-item .value {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e293b;
}

.version-timeline {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid #e2e8f0;
  margin-left: 8px;
}

.version-entry {
  position: relative;
  margin-bottom: 24px;
}

.version-entry::before {
  content: '';
  position: absolute;
  left: -29px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #0f4c81;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 2px #0f4c81;
}

.version-entry.latest::before {
  background: #d4af37;
  box-shadow: 0 0 0 2px #d4af37;
}

.version-entry-header {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.version-entry-tag {
  background: #0f4c81;
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
}

.version-entry.latest .version-entry-tag {
  background: #d4af37;
  color: #1a237e;
}

.version-entry-date {
  font-size: 0.78rem;
  color: #64748b;
}

.version-entry-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 6px;
}

.version-entry-list {
  margin: 0;
  padding-left: 18px;
  font-size: 0.82rem;
  color: #475569;
  line-height: 1.6;
}

.version-entry-list li {
  margin-bottom: 4px;
}